Rainforest Retreat
(Executive Maisonette, Upper Thomson)
I recently guided a project that transformed an old Executive Maisonette into a relaxing space brimming with nature. The goal was to merge natural design with modern functions. This property sits in the Upper Thomson Conservation Enclave in Singapore, and it spans about 1,600 square feet. The family of four who owns this home wanted a fresh look that echoes a rainforest vibe, while reducing long-term heat issues. Below is a detailed overview of our journey, from challenges to final touches.
Executive Maisonette, Upper Thomson
I observed how a Tropical Contemporary concept can reduce a home’s carbon footprint while improving comfort. Vertical living walls and open layouts enhance airflow and make indoor spaces more pleasant. By introducing heat-reflective films, micro-cement flooring, and concealed dehumidifiers, the owners can manage indoor temperatures and humidity without excessive energy consumption. From my perspective, this project also shows that older maisonettes can adopt green features when planned carefully. It is best to set aside 15% to 20% of the budget for temperature control solutions in older layouts. Early checks of structural capacity help when adding heavy items like hydroponic gardens in attic spaces. It is good to consult local agencies, especially for changes involving skylights or external elements. Getting approvals early avoids repeated design changes.
Location: Upper Thomson Conservation Enclave, Singapore
Property Type: Executive Maisonette (1,600 sqft)
Design Style: Tropical Contemporary
Renovation Timeline: 5 months
Key Partners: BCA-certified contractors, sustainable material specialists
We aimed to create a Tropical Contemporary concept. Our plan included vertical gardens, open-concept living, and energy-saving features. The renovation work lasted five months and involved local suppliers of eco-friendly materials.
Client Background & Pain Points
The clients had lived in this 30-year-old maisonette for over a decade. They are a family of four who loves nature and wanted a lively, plant-filled interior. Their main problems were:
- Compartmentalized layout: Many walls blocked natural light and breeze.
- Material degradation: Floors, walls, and built-ins had signs of wear, clashing with the family’s eco-friendly mindset.
- Thermal inefficiency: Humidity and heat buildup in a tropical climate.
- Storage limits: Few built-ins for greenery and sustainable living solutions.
The family needed clear solutions to boost ventilation, enhance comfort, and use organic elements without losing modern convenience.
Renovation Plan & Design Approach
Tropical Integration
- Vertical living walls: We installed panels filled with air-purifying plants such as Devil’s Ivy and Boston Fern. These walls absorb heat and produce cleaner air.
- Responsible timber use: We replaced damaged timber with Forest Stewardship Council (FSC)-certified Chengal wood. This choice aligned with the family’s desire for sustainable living.
- Teak floor restoration: The original teak flooring had historical value and was still structurally sound. We used eco-friendly polish to protect its character.
Spatial Reconfiguration
- Open-concept living area: We removed non-load-bearing walls to create a seamless flow between the living and dining spaces. This move improved cross-ventilation.
- Converted attic: The attic became a study room with a skylight. We added a small hydroponic herb garden to enhance indoor air and provide fresh herbs.
- Floating staircases: We introduced floating steps with built-in planter boxes. This plan maximized vertical growing space, adding greenery without cluttering the floor.
Climate Adaptations
- Heat-reflective films: We applied a film on windows to reduce indoor temperatures by about 3°C. This step lowered energy consumption, especially during hot afternoons.
- Micro-cement floors: The new floors are easy to clean and include underfloor cooling channels. These channels moderate humidity, keeping rooms fresh.
- Concealed dehumidifiers: We placed dehumidifiers behind timber screens for better air quality without impacting design flow.
Execution & Challenges Faced
Material sourcing
We faced a 10-week delay receiving certified Chengal wood. This setback required us to adjust the renovation timeline, but the final shipment met our quality standards.
Structural compliance
The attic floor needed reinforcement to hold a hydroponic garden. This unplanned move caused a 12% budget increase. However, the overhead greenery made the workspace peaceful and bright.
HDB approvals
We revised the skylight layout three times to meet local conservation rules. Each revision demanded new drawings and site checks, though the final design still achieved the desired amount of natural light.
Eco-balance
We used low-VOC paints and adhesives to prevent chemical emissions. This choice aligned with the family’s focus on healthy living.
Key Highlights & Features
Tropical Elements and Contemporary Innovations
| Tropical Elements | Contemporary Innovations |
|---|---|
| Vertical living walls | Smart climate-control system |
| Reclaimed teak screens | Motorized UV-filtering skylights |
| Hydroponic herb garden | Magnetic track lighting |
| Rainwater-fed planter system | Hidden charging stations in millwork |
Functional Touches
- Convertible dining table with compost station: A small compost bin pops up from the center of the table. This setup helps the family convert food scraps into fertilizer for their vertical gardens.
- Retractable mosquito screens: These pull-out screens let fresh air pass through, while blocking insects.
- Bathroom pebble flooring: Natural pebbles over a drainage system keep moisture from pooling. This element feels nice under the feet and suits the home’s Tropical Contemporary theme.
Cost Breakdown
Below is the main renovation cost breakdown. Furniture and decorative items are not included in these figures.
| Category | Cost (SGD) | Percentage of Total |
|---|---|---|
| Structural changes | 58,000 | 36% |
| Sustainable materials | 32,000 | 20% |
| Smart systems | 25,000 | 16% |
| Landscaping | 20,000 | 12% |
| Lighting/electrical | 15,000 | 9% |
| Total | 150,000 |
A large part of the budget went to structural changes. Sustainable materials also represented a notable cost, reflecting the family’s preference for eco-friendly improvements.
Chart: Cost Allocation by Category
Below is a simple chart idea to show the percentages for each category:
